<div class="wrapper">
    <div class="button-container">
        <button onclick="updateChart('groupedColumn')">Grouped Column</button>
        <button onclick="updateChart('stackedColumn')">Stacked Column</button>
        <button onclick="updateChart('normalizedColumn')">Normalized Column</button>
        <button onclick="updateChart('groupedBar')">Grouped Bar</button>
        <button onclick="updateChart('stackedBar')">Stacked Bar</button>
        <button onclick="updateChart('normalizedBar')">Normalized Bar</button>
    </div>
    <div id="myGrid"></div>
    <div id="myChart"></div>
</div>
